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83.040 - Raw materials for rubber and plastics

ICS 83.040 Details

Raw materials for rubber and plastics

Rohstoffe fur Gummi und Kunststoff

Matieres premieres pour les elastomeres et les plastiques

Surovine za gumo in polimerne materiale

General Information

Parent
83 - RUBBER AND PLASTICS INDUSTRIES
Sub-Items
83.040.01 - Raw materials for rubber and plastics in general
83.040.10 - Latex and raw rubber
83.040.20 - Rubber compounding ingredients
83.040.30 - Auxiliary materials and additives for plastics

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Standardization Organization
Technical Committee
Directive
Mandate
50
ISO
ISO 14932:2023(Main)
Rubber compounding ingredients — Organic vulcanizing agents — Determination of organic peroxide content

This document specifies four methods for the determination of the content of the following groups of organic peroxides used as rubber vulcanizing agents. There are three titration methods and one gas-chromatography method. a) titration method A for group a: Peroxyketals: 1,1-Di(tert-butylperoxy)cyclohexane (DTBPC; CAS Registry Number®:3006-86-8) 1,1-Di(tert-butylperoxy)-2-methylcyclohexane (DBPMC; CAS RN 147217‑40‑1); 1,1-Di(tert-butylperoxy)-3,3,5-trimethylcylcohexane (DBPTC; CAS RN 6731‑36‑8); 2,2-Di(tert-butylperoxy)butane (DBPB; CAS RN 2167‑23‑9); Butyl −4,4-di(tert-butylperoxy)valerate (BPV; CAS RN 995‑33‑5); b) titration method B for group b: Diacyl peroxides: Dibenzoyl peroxide (CAS RN 94‑36‑0); Di(2,4-dichlorobenzoyl) peroxide (CAS RN 133‑14‑2); Di(4-methylbenzoyl) peroxide (CAS RN 895‑85‑2); c) titration method C for group c: Diaralkyl and alkyl-aralkyl peroxides: Di(tert-butylperoxyisopropyl)benzene (CAS RN 2212‑81‑9); Dicumyl peroxide (CAS RN 80‑43‑3); tert-Butyl cumyl peroxide (CAS RN 3457‑61‑2); d) gas-chromatography for dialkyl peroxides, using a capillary or packed column. 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane (CAS RN 78‑63‑7)

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ISO
ISO 11235:2023(Main)
Rubber compounding ingredients — Sulfenamide accelerators — Test methods

This document specifies the methods to be used for the evaluation of sulfenamide accelerators: — MBTS: benzothiazyl disulphide; — CBS: N-cyclohexylbenzothiazole-2-sulfenamide; — TBBS: N-tert-butylbenzothiazole-2-sulfenamide; — DIBS: N,N'-diisopropylbenzothiazole-2-sulfenamide; — DCBS: N,N'-dicyclohexylbenzothiazole-2-sulfenamide; — MBS: N-oxydiethylenebenzothiazole-2-sulfenamide. NOTE 1 Although MBTS is not a sulfenamide, it is the primary decomposition product of these accelerators and quantitatively determined by the method specified in 5.2. The analytical methods are applicable for most commercial sulfenamide accelerators: — sulfenamides of primary amines (type I); — sulfenamides of unhindered secondary amines (type II); — sulfenamides of hindered secondary amines (type III). NOTE 2 Classification and key properties of sulfenamide accelerators are described in Annex A. The method (5.2) to determine purity by high performance liquid chromatography (HPLC) is the preferred method.

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ISO
ISO 3900:2023(Main)
Rubber — Nitrile latex — Determination of bound acrylonitrile content

This document specifies a method for the determination of the bound acrylonitrile content of emulsion-polymerized NBR lattices. The method is applicable to NBR lattices having a bound acrylonitrile content between 18 % and 45 %. It is also applicable to, for example, carboxylic-nitrile-butadiene (XNBR) lattices and nitrile-isoprene (NIR) lattices.

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    6 pages
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ISO
ISO 19043:2023(Main)
Natural rubber latex concentrate — Determination of total phosphate content by spectrophotometric method

This document specifies a method for the determination of total phosphate content of natural rubber latex concentrate. This method is not necessarily suitable for latex from natural sources other than the Hevea brasiliensis.

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ISO
ISO 3136:2023(Main)
Rubber latex — Styrene-butadiene — Determination of bound styrene content

This document specifies a method for the determination of the bound styrene content of styrene-butadiene rubber (SBR) lattices. The method is applicable to hot (approximately 50 °C) emulsion polymerized SBR lattices having a bound styrene content, expressed on the SBR content, of up to 55 % and to cold (approximately 5 °C) emulsion polymerized SBR lattices having a bound styrene content between 18 % and 40 %. The method is not applicable to reinforced styrene-butadiene rubber (SBR. .Y) lattices, carboxylic-styrene-butadiene rubber (XSBR) lattices and pyridine-styrene-butadiene rubber (PSBR) lattices.

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ISO
ISO 13741-1:2023(Main)
Plastics/rubber — Determination of residual monomers and other organic components by capillary-column gas chromatography — Part 1: Direct liquid injection method

This document specifies a method for the determination of residual monomers and other (saturated) organic components in aqueous polymer dispersions and latices as well as in related products. It makes use of capillary-column gas chromatography with direct injection of the liquid sample. Residual monomers and saturated volatiles that have been successfully determined by this method include acrylic and methacrylic esters, acrylonitrile, butadiene, styrene, vinyl acetate, vinyl chloride as well as by-products such as acetaldehyde and ethylbenzene.

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ISO
ISO 2006-1:2022(Main)
Rubber latex, synthetic — Determination of mechanical stability — Part 1: High-speed method

This document specifies a method for the determination of the high-speed mechanical stability of synthetic rubber latex. The method is not applicable to compounded synthetic rubber latices.

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    9 pages
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    10 pages
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ISO
ISO 249:2016/Amd 1:2022(Amendment)
Rubber, raw natural — Determination of dirt content — Amendment 1
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ISO
ISO 21869:2022(Main)
Rubber compounding ingredients — Magnesium oxide — Methods of test

This document specifies the test methods to be used for magnesium oxide intended for use in the rubber industry as a stabilizer and vulcanizing agent. The choice of the properties to be determined and the values required are subject to agreement between the interested parties.

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ISO
ISO 1138:2022(Main)
Rubber compounding ingredients — Carbon black — Determination of sulfur content

This document specifies two methods for the determination of the total sulfur in all types of carbon black for use in the rubber industry: — Method A, using a combustion furnace; — Method B, using an automatic analyser. With respect to safety aspects and test precision, it is preferable to use automatic systems. Method B is therefore the preferred method. Classical chemical analysis (Method A) is acceptable if automatic equipment is not available.

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ISO
ISO 5794-1:2022(Main)
Rubber compounding ingredients — Silica, precipitated, hydrated — Part 1: Non-rubber tests

This document specifies methods of test for characterizing precipitated hydrated silica for use as a rubber compounding ingredient. This document specifies the test formulation, mixing equipment, mixing procedure and methods of test for use in determining the physical properties of styrene-butadiene rubber compounded with precipitated hydrated silica.

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ISO
ISO 24376:2022(Main)
Rubber, raw natural — Guidelines and requirements for technically specified low-protein natural rubber

This document provides guidelines and gives requirements on the specification of low protein natural rubber (LPNR). A grading system is proposed, based on the origin of the natural rubber content and differentiated by the two processes, enzymatic and non-enzymatic, applied for removal of the proteins.

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    11 pages
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CEN
EN ISO 1043-4:2021(Main)
Plastics - Symbols and abbreviated terms - Part 4: Flame retardants (ISO 1043-4:2021)
SIST EN ISO 1043-4:2021

This document provides uniform symbols for flame retardants added to plastics materials.

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ISO
ISO 19050:2021(Main)
Rubber, raw, vulcanized — Determination of metal content by ICP-OES

This document describes the method of determination of both major and trace levels of metal contents in rubber — raw, vulcanized — by ICP-OES.

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    13 pages
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SIST
SIST EN ISO 1043-4:2021(Main)
Plastics - Symbols and abbreviated terms - Part 4: Flame retardants (ISO 1043-4:2021)
EN ISO 1043-4:2021

This document provides uniform symbols for flame retardants added to plastics materials.

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ISO
ISO 9026:2021(Main)
Raw rubber or unvulcanized compounds — Determination of green strength

This document specifies a method for the determination of the green strength of raw rubber or unvulcanized rubber compounds using a tensile stress-strain test, the test pieces being prepared following standard test conditions or cut from calendered sheets.

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    7 pages
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    8 pages
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ISO
ISO/TS 16096:2021(Main)
Reclaimed isobutene-isoprene (IIR) rubber — Evaluation procedure

This document defines — physical and chemical tests on raw reclaimed isobutene-isoprene (IIR) rubber, and — standard materials, standard test formulations, equipment, and processing methods for evaluating the vulcanization characteristics and the mechanical properties of reclaimed isobutene-isoprene rubber.

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    7 pages
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    7 pages
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ISO
ISO/TS 16095:2021(Main)
Reclaimed rubber derived from products containing mainly natural rubber — Evaluation procedure

This document defines — the physical and chemical tests on raw reclaimed natural rubber, and — the standard materials, standard test formulations, equipment, and processing methods for evaluating the vulcanization characteristics, and the mechanical properties of reclaimed natural rubber.

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ISO
ISO 1043-4:2021(Main)
Plastics — Symbols and abbreviated terms — Part 4: Flame retardants

This document provides uniform symbols for flame retardants added to plastics materials.

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ISO
ISO 248-1:2021(Main)
Rubber, raw — Determination of volatile-matter content — Part 1: Hot-mill method and oven method

This document specifies two methods for the determination of volatile-matter content in raw rubbers by using a hot mill or an oven. These methods are applicable to the determination of the volatile-matter content in the “R” group of rubbers listed in ISO 1629. These are rubbers having an unsaturated carbon chain, for example natural rubber and synthetic rubbers derived at least partly from di-olefins. These methods can also be applicable to other raw rubbers, but in these cases it is necessary to demonstrate that the change in mass is due solely to loss of actual volatile matter and not to rubber degradation. The hot-mill method is not applicable to natural rubber, to synthetic rubbers which are too difficult to handle on a hot mill or to synthetic rubbers in powder or chip form. The two methods do not necessarily give identical results. Therefore, in the case of dispute, the oven method, procedure A, is the reference method. NOTE The applicability of each test method to various types of rubber is summarized in Annex A.

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    12 pages
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ISO
ISO 1409:2020(Main)
Plastics/rubber — Polymer dispersions and rubber latices (natural and synthetic) — Determination of surface tension

This document specifies two methods for the determination of the surface tension of polymer dispersions and rubber latices (natural and synthetic). — Method A is the ring method (Du Noüy ring method). — Method B is the plate method (Wilhelmy plate method). Method A is suitable valid for polymer dispersions and rubber latices with a viscosity less than 200 mPa·s. Method B is not suitable for polymer dispersions and rubber latices containing cationic surfactants. Methods A and B are also suitable for prevulcanized latices and compounded material. In case of dispute, the preferred method is method A (the ring method).

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ISO
ISO 2000:2020(Main)
Rubber, raw natural — Guidelines for the specification of technically specified rubber (TSR)

This document specifies guidance on the specification of technically specified rubber (TSR). A grading system is proposed, based on the origin of the natural rubber content and on properties exhibited by the rubber. This document is intended for use by parties involved in the procurement of TSR and is intended to form a basis from which requirements for a particular case may be more closely specified. As such, it describes a number of criteria that need to be the subject of appropriate agreement between the interested parties.

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ISO
ISO 4652:2020(Main)
Rubber compounding ingredients — Carbon black — Determination of specific surface area by nitrogen adsorption methods — Single-point procedures

This document specifies two methods for the determination of the specific surface area of types and grades of carbon black for use in the rubber industry: — method A: automatic gas chromatography method (carrier gas method); — method B: automatic volumetric method. Somewhat different results might be obtained from the two methods. The degassing procedure differs between method A and method B, and it is important to investigate the possibility of correcting the results by using standard reference blacks. The results might also differ from those obtained using the multipoint method specified in ISO 18852, which is the preferred method. These methods are not applicable to porous carbon blacks.

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ISO
ISO 22768:2020(Main)
Raw rubber and rubber latex — Determination of the glass transition temperature by differential scanning calorimetry (DSC)

This document specifies a method using a differential scanning calorimeter to determine the glass transition temperature of raw rubber and rubber latex.

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ISO
ISO 4660:2020(Main)
Rubber, raw natural — Colour index test

This document specifies two methods to determine the colour of raw natural rubber according to a standard colour scale: — Method A: colour matching against standard coloured glasses; — Method B: colour determination using colour spectrophotometer. In case of dispute, the preferred method is Method B.

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    9 pages
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ISO
ISO 2453:2020(Main)
Rubber, raw styrene-butadiene, emulsion-polymerized — Determination of bound styrene content — Refractive index method

This document specifies a method for determining the bound styrene content of emulsion-polymerized styrene-butadiene rubbers (SBR) by correlation with the measured refractive index of an extracted sample according to a table of refractive indices versus percentage mass fractions styrene. The method is also applicable to extracted oil-extended emulsion-polymerized SBR as long as it produces a film suitable for refractive index measurements. It is not applicable to solution-polymerized SBR.

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    10 pages
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ISO
ISO 17278:2020(Main)
Rubber, raw natural — Determination of the gel content of technically specified rubber (TSR)

This document specifies a method for the determination of gel content for technically specified rubbers (TSR).

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    7 pages
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ISO
ISO 506:2020(Main)
Rubber latex, natural, concentrate — Determination of volatile fatty acid number

This document specifies a method for the determination of the volatile fatty acid number of natural rubber latex concentrate. The method is not necessarily suitable for latices from natural sources other than Hevea brasiliensis and is not applicable to compounded latex, vulcanized latex, artificial dispersions of rubber or synthetic rubber latices.

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    7 pages
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ISO
ISO 125:2020(Main)
Natural rubber latex concentrate — Determination of alkalinity

This document specifies a method for the determination of the alkalinity of natural rubber latex concentrate. The method is not necessarily suitable for latices from natural sources other than Hevea brasiliensis or for synthetic rubber latices, compounded latex, vulcanized latex or artificial dispersions of rubber. NOTE A method for the determination of the alkalinity of polychloroprene latex is specified in ISO 13773.

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    7 pages
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ISO
ISO 20927:2019(Main)
Rubber compounding ingredients — Precipitated silica — Determination of aggregate size distribution by disc centrifuge

This document specifies a general method for determining the aggregate size distribution (ASD) of silica by using a disc centrifuge according to the principle of sedimentation. As pre-stage the silica is de-agglomerated in water using strong ultrasonic power treatment. The method is used for precipitated silica.

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ISO
ISO 1656:2019(Main)
Rubber, raw natural, and rubber latex, natural — Determination of nitrogen content

This document specifies a macro-method and a semi-micro method for the determination of nitrogen in raw natural rubber and in natural rubber latex using variants of the Kjeldahl process. NOTE The determination of nitrogen in natural rubber is usually carried out in order to arrive at an estimate of the protein content. Minor amounts of non-proteinous nitrogen containing constituents are also present. However, in the dry solids prepared from natural rubber latex, these materials can make a substantial contribution to the total nitrogen content.

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    21 pages
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ISO
ISO 248-2:2019(Main)
Rubber, raw — Determination of volatile-matter content — Part 2: Thermogravimetric methods using an automatic analyser with an infrared drying unit

1.1 This document specifies two thermogravimetric methods for the determination of moisture and other volatile-matter content in raw rubbers by using an automatic analyser with an infrared drying unit. 1.2 These methods are applicable to the determination of volatile-matter content in synthetic rubbers (SBR, NBR, BR, IR, CR, IIR, halogenated IIR and EPDM) listed in ISO 1629 and to various forms of raw rubber, such as bale, block, chip, pellet, crumb, powder and sheet. These methods might also be applicable to other raw rubbers only when the change in mass is proven to be due solely to loss of original volatile matter and not to rubber degradation. 1.3 The methods are not applicable to raw rubbers which need homogenizing as specified in ISO 1795. 1.4 The hot-mill method and the oven method specified in ISO 248‑1 and the methods specified in this document might not give identical results. In cases of dispute, therefore, the oven method, procedure A, specified in ISO 248‑1:2011, is the referee method. NOTE These methods can be useful for routine determinations, e.g. quality control, when the measurement conditions for the automatic analyser are fixed for a particular raw rubber or grade of raw rubber.

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ISO
ISO 8332:2018(Main)
Rubber compounding ingredients — Sulfur — Methods of test

This document specifies methods of test for determining the main physical and chemical properties of sulfur used for compounding dry rubber. Several of these properties can be determined by more than one test method and the user can choose the most appropriate method following the description of the test method principles provided under the corresponding clauses. NOTE Typical levels for the relevant properties of sulfur for use as a rubber compounding ingredient are contained in Annex A, for information only.

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    26 pages
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ISO
ISO 24698-2:2018(Main)
Rubber, raw — Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber (NBR) — Part 2: Kjeldahl method

This document specifies a method for the determination of the bound acrylonitrile content in NBR by an automatic analyser which uses the Kjeldahl method. The method is also applicable to XNBR (carboxylic acrylonitrile-butadiene rubber) and NBIR (acrylonitrile- butadiene-isoprene rubber) as well as NBR latex. NOTE This document and ISO 24698‑1 can give different results on the same rubber sample.

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ISO
ISO 24698-1:2018(Main)
Rubber, raw — Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber (NBR) — Part 1: Combustion (Dumas) method

This document specifies a method for the determination of the bound acrylonitrile content in NBR by an automatic analyser which uses a combustion process. The method is also applicable to XNBR (carboxylic acrylonitrile-butadiene rubber) and NBIR (acrylonitrile- butadiene-isoprene rubber) as well as NBR latex. NOTE This document and ISO 24698‑2 can give different results on the same rubber sample.

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ISO
ISO 127:2018(Main)
Rubber, natural latex concentrate — Determination of KOH number

This document specifies a method for the determination of the KOH number of natural rubber latex concentrate which is preserved wholly or in part with ammonia. The method is applicable to latices containing boric acid. The method is not applicable to latices preserved with potassium hydroxide. It is not necessarily suitable for latices from natural sources other than Hevea brasiliensis, or for latices of synthetic rubber, compounded latex, vulcanized latex or artificial dispersions of rubber.

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    11 pages
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ISO
ISO 3858:2018(Main)
Rubber compounding ingredients — Carbon black — Determination of light transmittance of toluene extract

This document specifies a method for the determination of the light transmittance of the toluene extract from carbon black for use in the rubber industry, as a means of measuring the discolouration caused by the extractable matter. The light transmittance value provides an estimate of the degree of discolouration caused by the toluene-extractable matter present on the surface of the carbon black. This method might not be applicable to carbon blacks with a high extractable-matter content.

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    8 pages
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ISO
ISO 28641:2018(Main)
Rubber compounding ingredients — Organic chemicals — General test methods

This document specifies sampling and test methods for the determination of the general characteristics of organic chemicals such as accelerators, antidegradants (including wax) and vulcanizing agents (excluding peroxides).

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    41 pages
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ISO
ISO 5435:2017(Main)
Rubber compounding ingredients — Carbon black — Determination of tinting strength

ISO 5435:2017 specifies a method for the determination of the tinting strength of carbon black relative to an industry tint reference black. The method is based on the use of five different commercial instruments. Other instruments can be used if the test results for the standard reference blacks are within the control limits given in ASTM D4821. NOTE The Densichron reflectometer and the Meeco Colormaster are no longer commercially available, but the procedures have been included for the benefit of those who still use these instruments.

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ISO
ISO 2004:2017(Main)
Natural rubber latex concentrate — Centrifuged or creamed, ammonia-preserved types — Specifications

ISO 2004:2017 gives specifications for natural rubber latex concentrate types which are preserved wholly or in part with ammonia and which have been produced by centrifuging or creaming.

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    3 pages
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ISO
ISO 7781:2017(Main)
Styrene-butadiene rubber, raw — Determination of soap and organic-acid content

ISO 7781:2017 specifies three methods for the determination of the soap and organic-acid content of raw styrene-butadiene rubber (SBR). - Method A is the titration method using indicator reagent. - Method B is the titration method using an automatic potentiometric titrator. - Method C is the back titration method using an automatic potentiometric titrator. Since the soaps and organic acids present in the rubber are not single chemical compounds, the method gives only an approximate value for the soap and organic-acid content.

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CEN
EN 16640:2017(Main)
Bio-based products - Bio-based carbon content - Determination of the bio-based carbon content using the radiocarbon method
SIST EN 16640:2017

This European Standard specifies a method for the determination of the bio-based carbon content in products, based on the 14C content measurement.
This European Standard also specifies three test methods to be used for the determination of the 14C content from which the bio-based carbon content is calculated:
-   Method A: Liquid scintillation-counter method (LSC) (normative);
-   Method B: Beta-ionization (BI) (informative);
-   Method C: Accelerator mass spectrometry (AMS) (normative).
The bio-based carbon content is expressed by a fraction of sample mass or as a fraction of the total carbon content. This calculation method is applicable to any product containing carbon, including bio composites.
NOTE   This European standard does not provide the methodology for the calculation of the biomass content of a sample see prEN 16785-1 [5] and prEN 16785-2 [6].

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ISO
ISO 2930:2017(Main)
Rubber, raw natural — Determination of plasticity retention index (PRI)

ISO 2930:2017 specifies a method for determining the plasticity retention index (PRI) of raw natural rubber. The PRI is a measure of the resistance of raw natural rubber to thermal oxidation. A high resistance to thermal oxidation is shown as a high value of the index. PRI is not an absolute value and cannot give an absolute classification of plasticity number of different natural rubber after oxidation.

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    9 pages
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ISO
ISO 11236:2017(Main)
Rubber compounding ingredients — p-Phenylenediamine antidegradants (PPDs) — Test methods

ISO 11236:2017 applies to a variety of substituted p-phenylenediamine antidegradants (PPDs) used in the rubber industry. The three general classes of PPDs are dialkyl, alkyl-aryl and diaryl, which are used to impart ozone resistance to rubber. The following test methods are of greatest significance in assessing the purity of production PPDs, and hence their suitability for use in rubber. They are specified in this document as follows: - determination of purity by gas chromatography (GC); - determination of purity by high-performance liquid chromatography (HPLC); - determination of ash; - determination of volatile matter.

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ISO
ISO 20851:2017(Main)
Synthetic rubber latex — Examination for microorganisms

ISO 20851:2017 specifies the method to examine the presence and approximate count of viable aerobic and facultative anaerobic microorganisms in synthetic rubber latices. Identification of the microorganisms is outside the scope of this document.

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ISO
ISO 10638:2017(Main)
Rubber — Identification of antidegradants by gas chromatography/mass spectrometry

ISO 10638:2017 specifies a method using gas chromatography/mass spectrometry, for the identification of antidegradants in raw rubbers, latices, unvulcanized-rubber compounds and vulcanized-rubber products. It is applicable to the 31 types of antidegradant listed in Annex A. The method specified is qualitative and is not intended for quantitative analysis.

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CEN
EN 16640:2017/AC:2017(Corrigendum)
Bio-based products - Bio-based carbon content - Determination of the bio-based carbon content using the radiocarbon method
SIST EN 16640:2017/AC:2017

CCMC - Mix up in clause numbering & related paragraphs

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ISO
ISO 6472:2017(Main)
Rubber compounding ingredients — Abbreviated terms

ISO 6472:2017 establishes unambiguous abbreviated terms for commonly used rubber compounding ingredients of known, specific chemical composition.

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ISO
ISO 20299-2:2017(Main)
Film for wrapping rubber bales — Part 2: Natural rubber

ISO 20299-2:2017 specifies the material and physical property requirements for non-strippable low density polyethylene film for wrapping natural rubber bales comprising of block natural rubber of 33,33 kg or 35 kg and natural rubber ribbed smoked sheets including bales of 33,33 kg, 35 kg, 50 kg and 111,11 kg, or any other bale weights as mutually agreed between the parties, and intended to keep the bales separate during transportation and storage.

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ISO
ISO 1795:2017(Main)
Rubber, raw natural and raw synthetic — Sampling and further preparative procedures

ISO 1795:2017 specifies a method for the sampling of raw rubber in bales, blocks or packages and further procedures carried out on the samples to prepare test samples for chemical and physical tests.

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